Lončarić, Martin; Sancho-Parramon, Jordi; Zorc, Hrvoje (2011) Optical properties of gold island films: a spectroscopic ellipsometry study. Thin Solid Films, 519 (4). pp. 2946-2950. ISSN 0040-6090
Abstract
Metal island films of noble metals are obtained by deposition on glass substrates during the first stage of evaporation process when supported metal nanoparticles are formed. These films show unique optical properties, owing to the localized surface plasmon resonance of free electrons in metal nanoparticles. In the present work we study the optical properties of gold metal island films deposited on glass substrates with different mass thicknesses at different substrate temperatures. The optical characterization is performed by spectroscopic ellipsometry at different angles of incidence and transmittance measurements at normal incidence in the same point of the sample. Fitting of the ellipsometric data allows determining the effective optical constants and thickness of the island film. A multiple oscillator approach was used to successfully represent the dispersion of the effective optical constants of the films.
Item Type: | Article | ||||||||
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Uncontrolled Keywords: | spectroscopic ellipsometry; metal islands; surface plasmon; optical properties | ||||||||
Subjects: | NATURAL SCIENCES > Physics NATURAL SCIENCES > Physics > Condensed Matter Physics |
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Divisions: | Division of Laser and Atomic Research and Development | ||||||||
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Depositing User: | Hrvoje Zorc | ||||||||
Date Deposited: | 07 May 2015 09:12 | ||||||||
URI: | http://fulir.irb.hr/id/eprint/1767 | ||||||||
DOI: | 10.1016/j.tsf.2010.12.068 |
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